mirror of https://github.com/CGAL/cgal
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
// Copyright (c) 2001 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Sylvain Pion
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#ifndef CGAL__TEST_ANGLE_H
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#define CGAL__TEST_ANGLE_H
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template <class R>
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bool
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_test_angle(const R&)
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{
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typedef typename R::RT RT;
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typedef typename R::FT FT;
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const RT RT0(0);
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const RT RT1(1);
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typedef CGAL::Point_2<R> Point_2;
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typedef CGAL::Point_3<R> Point_3;
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Point_2 p(RT(2),RT(1));
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Point_2 q(RT(5),RT(4));
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Point_2 r(RT(5),RT(10));
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assert( CGAL::angle( p, q, r ) == CGAL::OBTUSE );
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assert( CGAL::angle( r, p, q ) == CGAL::ACUTE );
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Point_2 e0( RT1, RT0);
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Point_2 e1( RT0, RT1);
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Point_2 org( RT0, RT0);
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assert( CGAL::angle( e0, org, e1) == CGAL::RIGHT );
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Point_3 s0( RT1, RT0, RT0);
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Point_3 s1( RT0, RT1, RT0);
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Point_3 s2( RT0, RT0, RT1);
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Point_3 org3( RT0, RT0, RT0);
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assert( CGAL::angle( s0, org3, s1 ) == CGAL::RIGHT );
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assert( CGAL::angle( s0, s1, s2) == CGAL::ACUTE );
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return true;
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}
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#endif // CGAL__TEST_ANGLE_H
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